David Ortiz delivered his latest big hit, too, putting Boston in position to capture its third crown in a decade. Not since 1918 have the Red Sox clinched the title on their own field.

“This atmosphere here, these three games, has been phenomenal. We know it’s going to be equal to that, if not better. And we’re excited about going home in the position we are,” Red Sox manager John Farrell said.

Added Ortiz of Boston’s century-old bandbox: “It’s going to get loud out there.”

John Lackey gets the first chance to win it Wednesday night against St. Louis rookie sensation Michael Wacha. A Cardinals victory would set up a most spooky proposition for both teams — Game 7 on Halloween night.

“It will be legendary if we go into Boston and win two games,” Wainwright said.

Ortiz enjoyed even more success in Game 5 after moving up from cleanup to the third slot. He is 11 for 15 (.733) in this Series with two homers, six RBIs and four walks.